Gene Symbol | GRK4 |
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Entrez Gene | 2868 |
Alt Symbol | GPRK2L, GPRK4, GRK4a, IT11 |
Species | Human |
Gene Type | protein-coding |
Description | G protein-coupled receptor kinase 4 |
Other Description | ITI1 |
Swissprots | Q53EQ8 Q14453 Q15315 Q14725 Q13294 O00642 Q15314 Q13293 Q17RH6 Q15313 Q13295 P32298 O00641 Q15316 |
Accessions | AAB04045 AAC50409 AAC50410 AAC50411 AAC50412 CAA92341 EAW82479 EAW82480 EAW82481 EAW82482 EAW82483 EAW82484 EAW82485 P32298 AK223581 BAD97301 AK292390 BAF85079 AK293569 BAG57040 BC027597 BC039732 BC117320 AAI17321 BI465220 BM725978 HQ258463 ADR83217 U33054 AAC50406 U33055 AAC50407 U33056 AAC50408 X75897 CAA53506 X97879 CAA66468 X97880 CAA66469 X97881 CAA66470 X98118 CAA66802 XM_005247962 XP_005248019 XM_006713880 XP_006713943 XM_011513447 XP_011511749 XM_011513448 XP_011511750 XM_011513449 XP_011511751 XM_011513450 XP_011511752 XM_011513451 XP_011511753 XM_011513452 XP_011511754 XM_011513453 XP_011511755 XM_011513454 XP_011511756 XM_011513455 XP_011511757 XM_011513456 XP_011511758 XM_011513457 XP_011511759 XR_924941 XR_924943 NM_001004056 NP_001004056 NM_001004057 NP_001004057 NM_005307 NP_005298 NM_182982 NP_892027 |
Function | Specifically phosphorylates the activated forms of G protein-coupled receptors. GRK4-alpha can phosphorylate rhodopsin and its activity is inhibited by calmodulin; the other three isoforms do not phosphorylate rhodopsin and do not interact with calmodulin. GRK4-alpha and GRK4-gamma phosphorylate DRD3. Phosphorylates ADRB2. {ECO:0000269|PubMed:19520868, ECO:0000269|PubMed:8626439}. |
Subcellular Location | Cytoplasm. Cytoplasm, cell cortex. Note=Both at the cell surface and dispersed in the cytoplasm under basal conditions. Receptor stimulation results in the internalization of GRK4 to the perinuclear area, where colocalization with DRD3 is observed strongly at 5 and 15 minutes. DRD3 and GRK4 colocalize in lipid rafts of renal proximal tubule cells. |
Tissue Specificity | Isoform 1, isoform 2, isoform 3, and isoform 4 are expressed in testis. Isoform 4 is expressed in myometrium. {ECO:0000269|PubMed:16636192, ECO:0000269|PubMed:8626439}. |
Top Pathways | Endocytosis, Chemokine signaling pathway, Morphine addiction |
GRK 4 (D-11) - sc-376891 from Santa Cruz Biotechnology
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GRK 4 (A-5) - sc-9985 from Santa Cruz Biotechnology
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GRK 4 (H-70) - sc-13079 from Santa Cruz Biotechnology
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GRK 4 (I-20) - sc-564 from Santa Cruz Biotechnology
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GRK 4 (K-20) - sc-1016 from Santa Cruz Biotechnology
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Anti-GRK4 antibody - ab182635 from Abcam
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Anti-GRK4 antibody - ab38293 from Abcam
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Anti-GRK4 antibody - ab55139 from Abcam
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Anti-GRK4 Antibody (clone 6D12) - LS-C197337 from LifeSpan Bioscience
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Anti-GRK4 Antibody (aa1-245, clone 9A3) - LS-C339827 from LifeSpan Bioscience
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Anti-GRK4 Antibody (aa359-408) - LS-C117255 from LifeSpan Bioscience
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Anti-GRK4 Antibody (aa243-292) - LS-C81746 from LifeSpan Bioscience
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Anti-GRK4/GRK5/GRK6 Antibody (aa463-590) - LS-C67122 from LifeSpan Bioscience
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GRK4 Antibody - NBP1-55313 from Novus Biologicals
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GRK4 Antibody - NBP2-37960 from Novus Biologicals
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GRK4 Antibody (6D12) - H00002868-M01 from Novus Biologicals
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GRK4 Antibody (4D2) - H00002868-M08 from Novus Biologicals
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GRK4 Antibody - H00002868-A01 from Novus Biologicals
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GRK4 Antibody (2C5) - H00002868-M07 from Novus Biologicals
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GRK4 Antibody (6D5) - H00002868-M02 from Novus Biologicals
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GRK4 Antibody (6D12) - H00002868-M01A from Novus Biologicals
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GRK4+5+6 Polyclonal Antibody - bs-11235R from Bioss
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GRK4+5+6 Polyclonal Antibody, ALEXA FLUOR® 350 Conjugated - bs-11235R-A350 from Bioss
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GRK4+5+6 Polyclonal Antibody, ALEXA FLUOR® 488 Conjugated - bs-11235R-A488 from Bioss
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GRK4+5+6 Polyclonal Antibody, ALEXA FLUOR® 555 Conjugated - bs-11235R-A555 from Bioss
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